gene pool


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gene pool,

the total of all genesgene,
the structural unit of inheritance in living organisms. A gene is, in essence, a segment of DNA that has a particular purpose, i.e., that codes for (contains the chemical information necessary for the creation of) a specific enzyme or other protein.
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 in a population of a particular species. See geneticsgenetics,
scientific study of the mechanism of heredity. While Gregor Mendel first presented his findings on the statistical laws governing the transmission of certain traits from generation to generation in 1856, it was not until the discovery and detailed study of the
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.

Gene Pool

 

(Russian genofond), the qualitative composition and the relative quantity of the different forms (alleles) of the various genes in the population of one or another species of organism. By the term “gene pool” (the term in Russian was introduced by the Russian scientist A. S. Serebrovskii in 1928) is meant the allelic composition of the population or of all the members of the species, including all the variable characters and traits of the species or one or another selection from them, which is of interest to the researcher. When there is a sharp reduction in the number of individuals or a change in external conditions, the recessive gene pool— which is the sum total of recessive alleles that are for the most part excluded from natural selection—ensures that there will be a rapid change in the genetic makeup of the population. In the genetically less studied species, it is possible to determine the so-called phenotypic pool (a phene is an elementary character). Taking stock of hereditarily variable characters of farm animal and plant species under study, together with a determination of the frequencies of various alleles, is of great practical significance. The study of the gene pool of man has fundamental significance for human genetics.

REFERENCE

Serebrovskii, A. S. “Genogeografiia i genofond sel’skokhoziaistvennykh zhivotnykh SSSR.” Nauchnoe slovo, 1928, no. 9.

N. V. TIMOFEEV-RESOVSKII

gene pool

[′jēn ‚pül]
(genetics)
The totality of the genes of a specific population at a given time.
References in periodicals archive ?
He says the likelihood of needing sperm from CEC elephants is close to zero, given diversity in the wild Asian elephant gene pool and the large number of captive elephants still in Asia.
For Native Americans, a federally imposed concept of blood quantum was instead designed to deconstruct Indian identity as the gene pools presumably would become mixed, gradually legislating away indigenous claims to land and sovereign rights.
Introduction of the Texas cougars helped revive the panther population by increasing the size of the gene pool, decreasing the amount of inbreeding, and decreasing the number of harmful recessive genes found within the population.
FAO favors genetic improvement of local breeds, including the utilization and sustainable intensification of the local gene pool.
The record prices have been achieved due to the good reputation and gene pool of the South Wales mountain rams with farmers travelling from Gloucester, Exmoor and as far afield as Yorkshire and Cornwall to purchase the high calibre breed.
Mr Blair wrote: "At the very time when leadership is needed, the gene pool of political leaders has shrunk.
Alcoholism in Kyrgyzstan has reached menacing proportions and threatens to gene pool of population, Bubusara Ryskulova, Head of the Crisis Center "Sezim", told a press conference on July 1.
Ashton Kutcher and Mila Kunis are two incredibly beautiful people, so their gene pool is bound to contain some pretty handsome stuff.
These genes were passed on to more recent migrants from lower elevations via population mixing, and then amplified by natural selection in the modern Tibetan gene pool, according to a new study by scientists from the University of Chicago and Case Western Reserve University.
This means they can all kill each other and in so doing immeasurably improve the gene pool.
Approximately half of the gene pool was universally shared everywhere in the world, while only the ASY region had the entire range of genetic diversity.
The best of your emails Bet on the gene pool If racing is the sport of dreams, then Equinome is the nightmare.